SW20 GT IDLE?

Re: SW20 GT IDLE? (rileseffect)

Thu, 26 May 2016 17:15:38 GMT

Thanks for all the replies guys! good to hear its normal. mine is the 1990 jdm mr2 turbo

Re: SW20 GT IDLE? (Falcon)

Thu, 26 May 2016 10:25:43 GMT

Peter is correct. Very common for tacko to be off a bit.

Re: SW20 GT IDLE? (Peter)

Thu, 26 May 2016 09:32:08 GMT

By the Tacho my engine is idling at approx 900 to 1000 RPM.
A little while ago when we had a Dyno day at WTF Auto, I observed that the Dyno readout was showing more than 100 RPM lower than the Tacho.
I asked the question.
It is apparently common for our Tachos to read high.

Re: SW20 GT IDLE? (P E T E)

Thu, 26 May 2016 09:23:56 GMT

is it turbo or NA, & what Gen engine?
Turbo Gen 2 is supposed to be 850rpm at factory I think. There is a sticker on the engine bonnet that states the idle rpm.

If you have high electrical load (Front lights on or defogger on) then I think the idle gets bumped up by 50rpm.

I have no idea about the NA's though.

Re: SW20 GT IDLE? (Falcon)

Thu, 26 May 2016 09:04:22 GMT

As Mike says its very close and tacos are not always spot on anyway.
Might be an idea to check the base (static) ignition timing too.

Re: SW20 GT IDLE? (Carmikey)

Thu, 26 May 2016 08:48:48 GMT

rileseffect
Hi guys. I'm new to the MR2 forums and am just wondering what the SW20 GTs base idle is?
Mine seems to run at around 1200 - 1300rpm on cold start then idle at 900rpm once at operating temp.
I'm confident their are no intake or vacuum leaks as I have gone over everything and also replaced all vacuum lines. The temp gauge is reading correctly so I don't think its to do with a cold start type thing. 900rpm just doesn't seem right to me.

Thanks

Sounds pretty close. All mine, once at norm operating temp set between 8-850rpm. both my na's & turbos are the same at idle.

Re: SW20 GT IDLE? (Matts_SW20)

Wed, 25 May 2016 21:27:52 GMT

Those details match mine, doesn't seem out of the ordinary. Don't know why they idle that high though, potentially something to do with balance *shrugs*

SW20 GT IDLE? (rileseffect)

Wed, 25 May 2016 20:25:37 GMT

Hi guys. I'm new to the MR2 forums and am just wondering what the SW20 GTs base idle is?
Mine seems to run at around 1200 - 1300rpm on cold start then idle at 900rpm once at operating temp.
I'm confident their are no intake or vacuum leaks as I have gone over everything and also replaced all vacuum lines. The temp gauge is reading correctly so I don't think its to do with a cold start type thing. 900rpm just doesn't seem right to me.

Thanks